121112323103 has 16 divisors (see below), whose sum is σ = 122776617600. Its totient is φ = 119460627360.

The previous prime is 121112323069. The next prime is 121112323109. The reversal of 121112323103 is 301323211121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121112323103 - 2¹² = 121112319007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112323109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51079508 + ... + 51081878.

It is an arithmetic number, because the mean of its divisors is an integer number (7673538600).

Almost surely, 2^121112323103 is an apocalyptic number.

121112323103 is a deficient number, since it is larger than the sum of its proper divisors (1664294497).

121112323103 is a wasteful number, since it uses less digits than its factorization.

121112323103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4742.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121112323103 its reverse (301323211121), we get a palindrome (422435534224).

The spelling of 121112323103 in words is "one hundred twenty-one billion, one hundred twelve million, three hundred twenty-three thousand, one hundred three".